Roll-holder for calculators.



w. R. DE CAMP. ROLL HOLDER FOR CALCULATORS.

APPLICATION FILED MAY 4. 1915.

Patented Nov. 2, 1915.

3 mm M04;

614613 I I I 'inaiirnp erm ne Parana opt ion.

WITSEL R. DE CAMP, OF ROSELAND, NEW JERSEY, ASSIGNOR T0 ADDOME'IER CORPORATION, OLE NEW YORK, N. Y., A CORPORATION: OF DELAWARE.

ROLL-HOLDER FOR CALCULATORS.

Specification of Iletters.1atent.

Application filed May 4, 1915; Serial No. 25,668.

of the carriage carrying the platen on a calculator, a typewriter, or any similar mechanism; and further to provide in connection therewith guiding means arranged to guide the paper from the roll onto the platen or printing surface.

In the accompanying drawing illustrating one embodiment of my invention, Figure 1 shows in plan a carriage and platen at the rear of a printing machine, with a. roll of paper supported thereby. Fig. 2 is a rear elevation of the parts shown in Fig. 1, with the roll removed and the arms in their folded position. Fig. 3 is a side elevation of the parts shown in Fig. 1, enlarged. Fig. 1 is an end elevation of one of the supporting arms with its attached guide bar; Fig. 5 is a vertical section enlarged on the line 5.' indicated in Fig. 2, and Fig. 6 is a horizontal section on the lines 66 of Fig. 5.

1n. the drawings is shown a platen 6 suitably supported at the rear of a printlng'machine 7. The platen is carried by a carriage one of whose end members 8 is indicated in Fig. :5. and which are shown as connected by a plate 9. supported a bar 10 by its end portions, so that between the ends of the bar is free, as

At the rearof the plate 9 is bent ears 17 and 18 at the lower end, that are perforated, and are inserted between the. ears 14 of the block 12 with the perforatlons registering to receive a pivot pin 19. The latter forms a vertical axis for the arm 16, so that it can swing from a posltion extending rearward as indicated in Fig. 1, to a position lying substantially in the plane of the bar 10, as shown in Fig. 2, and indicated in broken lines at the left in Fig. 1. Each arm 16 on its inner face is provided with a lug 20, that when the arms extend rearwardly in parallelism as indicated in Fig. 1, project in alinement and serve to support a roll of paper 21. By sliding these blocks 12 carrying the arms along the bar 10, different widths of the roll 21 can be accommodated within a considerable range of sizes. A 0011 spring 25 is arranged around the pivot pin 19 in each block with it's ends engaging the arm 16, and the block 12 respectively,- that serve to swing the arms inwardly from the rearwardly extending position against the bar 10. But ears 26 are shown projecting from the blocks 12 to engage the arm 16 in the closed position. When the arms are swung outwardly perpendicular to the bar 10, a bent ear 27 on each arm 16 will engage the block 12 and limit the movement of the arm in this direction.

On each arm 16 is pivoted a guide bar 22 having a bent extension 23 provided with a I lower curved edge 24. lVhen the arms 16 shown in Fig. 1. ()n the bar 10 slide a pair around the bar 10; and also ears l4 bent rearward at the top and bottom and containing vertical alining apertures. These blocks are slidable endwise along the bar 10, from the position adjacent the ends as indicated in Fig. 2, toward the middle of the bar. If desired a plate spring 15 may be inserted between the ears 13 and the inner face of the bar 10, as shown best in Fig. 6, to increase the friction and retain the blocks in desired positions along the bar 10 to which they may be moved. To each of these blocks 12 1s are supporting the roll as shown in Figs. 1 and 3, the arms 22 are swung rearward and the curved edge 21 is brought to engage the platen 6, as indicated in Fig. 3.

Patented Nov. 2, 1915.

Since these guide bars are pivoted on the outer side of each of the arms 16, these bars 22 will engage the platen at each edge of the paperthat is fed to the platen from the roll 21. When it is desired to remove the roll and use the platen without the same,

the uide bars 22 are swun u wardl id-- jacent the arm 16, as indicated in broken lines in Fig. 2. and then the blocks 12 are moved outwardly near the ends of the bar 10, and then the arms 16 are swung .inwardly into the vertical plane of the guide bar 10. Thereupon the guide arms 22 can be swung downwardly as shown in Fig. 2 and will be out of the way and not interfere with a sheet of paper being placed on the platen. By this arrangement it will be univoted an arm 16, shown as provided with derstood that aroll of paper of different fside-vof the middle portion, an arm hinged the platen, and suitably guided by the guide widths}, can be y'- suppo rt'ed at 'the rear of the -'pl 'a-te'n, and t-lie web therefrom fed to baI'Sl:;; W hich engage the laten at eachl edge of the paper; ill-hen it 'is '(lesi'red to {use a sheet of paper instead of the roll, it can be I quickly removed, and the supportingarms together with the guide bars or arms are quickly swung to the"rear and placed in a position not to interfere with the free use of the paper. Having thusdescrmed my invent on, what I l ims I 1. calculating machine, the combinat on with a carriage and a platen thereon, of ',at the rearof the carnage forming a horizontalguideway, a'pair of blocks slidablynwunted oir' the guidewayone each side of the.middle portion, an arln hinged to eachfls aidfblock, aglug "on the inner face of each'a-rmat tsouterfend, the blocksbeing slidable to; permit. the armsto. extend trans versely rearward ln parallelism to support rollsiofid fierent )YlCltllS, and a guldebar on each arm ariianged to extend'to the platen-. to, guide thepaper; as'fed from thesupp'ort-J- .edroll, the blooks; fb eing also slidableitov reoede-from each otherand permit the arms and guide bars-to be folded to lie in the plane of gthegrfidway. i 2,;In a printinganaclnne. the combination w th acarriage and 'a platen thereon, of a bauatthe'rean of the carriage forming. a

platen, the-ablo horizontal guideway, a pair of blocks slidablyymounted, inthe guideway one on each to BllOllfblOClQ-HIHQ on theinner face of each arm atrits outer end, the blocks being slidablei'to. permit the arms to extend transversely rearward 1n parallelism toisupport 1 rolls of different widths, and ai'guide bar.

hinged to each arm to swing in the plane of thearin and to be brought over to the toptof the platen fwhenuthe arms support a roll whereby tofgiiide the paper aswfed to the 's being slidablemlso to recedefyi fromeali; other permitthe arms to betfol'ded inwardly to cause the arms and guide lars to he in the plane of the said .igll dewa I'li' a, printing machinftlie combination w ith a carriage and a platen thereon, of a bar at the rear of thecarrlage, a pair of blocks each provided with bent ears forming aglndew'ay engaging the bar to slide thereon, each block also having a pair of apertured ears extending beyond the bar, a

pair of arms each provided with a pair of apertured ears at one end portion arranged to engage said apertured ears, a pin connecting said ears to pivotally mount the arms on the blocks, each arm having a lug on its inner face at the free end, the blocks being slidable to permit'the arms to extend rearward in parallelism to support rolls of different widths, and springs on said pivoted members to swing the arms in against the bar when free from the roll.

4. In a printing machine, the combination with a carriage and a platen thereon, of a bar at the rear of the carriage, a pair of blockseach provided with bent ears forming a guideway engaging the bar to slide thereon, each block also having a pair of apertured ears extending beyond the bar, a pair of arms each provided with a pair of apertured ears at one end portion arranged to engage said a'pertured ears, a pin connecting said ears to pivotally mount the arms on the blocks, each arm having a lug on its inner face at the free end, the blocks being slidable to permit the arms to extend rearward in parallelism to support rolls of different widths, and springs on said pivoted members to swing the arms in against the bar wheniree from the roll, each arm having a'bent ear to limit its outward movement, each block having about ear to limit the inward swing of the arm.

Signed at Newark in' the State of New Jersey this 30th day of April A. D. 1915.

\VITSEL R. DE CAMP. 

